FirstOSXYosemitepublicbetaissettolaunch

At last month’s Worldwide Developers Conference (WWDC), Apple announced plans to introduce a public beta for OS X Yosemite. The first of these betas should be released before the end of the July, according to 9to5Mac.
According to the report:

Apple has chosen to wait until later this month to release the public beta in order to ensure that the operating system is polished enough to be used by consumers, according to the sources. Because of the sometimes uncertain nature of software development, the release of the beta could be pushed back to early next month, the sources added.